bug#48117: 28.0.50; Update of loaddefs.el during normal build is unreliable

[Glenn Morris]

Gregory Heytings wrote:

> I think this should preferably be automated.  The current
> ldefs-boot.el file in the trunk is 25 days old, running
> admin/update_autogen -L adds 247 lines and modifies 100 lines.

It gets automaticallly updated on the first of the month.
It could be more frequent, but it would seem like churn for no real
reason most of the time.
(It wouldn't make any difference to the issue that prompted this report.)